posted by Angy .
A certain mass(m) of an impure iron sample of 40% purity ,is treated with an excess of HCl to give H2 that occupies 44.8 L at s.t.p ( Vm=22.4) where the yeild of the reaction is 0.8.
A) calculate m.
B) deduce the mass of HCl reacted.
Thanks in advance!!
See the response by Bob Pursley above.